[Linux-cluster] SOLVED Netmask bit set to 32 in service ip
Lon Hohberger
lhh at redhat.com
Fri Feb 15 15:29:32 UTC 2008
On Fri, 2008-02-15 at 10:13 +0200, Pavlos Parissis wrote:
> It works now and I know why it didn't work before.
Actually, it's luck... see below. ;)
> The last time I saved a copy of the ip.sh under /usr/share/cluster,
> reading you comment bellow I can guess that the backup file was used
> and not the patched file, even the backup file had a name ip.sh-bak.
It's because readdir() doesn't necessarily read things in alphabetic
sort order. So, if the directory entry for 'ip.sh-original' came before
'ip.sh', 'ip.sh-original' would get picked as the provider for the 'ip'
resource.
However, if you remove a file or two and create new ones, there's a
chance that the directory entry might come after 'ip.sh'... making
things work!
The rule to remember is that we won't use anything in /usr/share/cluster
that does not have the execute permissions bit set, so you can create
backups in /usr/share/cluster -- just 'chmod -x' them :)
The theory for this mode of operation is that we don't have to impose
file name extension requirements on users and developers (for example,
SAP* have no extensions - they were developed by the open source
community)...
> I am sorry but I did expect from the cluster to pick up the backup file.
...The downside is that it traps unsuspecting users - such as
yourself. :)
Maybe we should put a 'README' file in /usr/share/cluster? (Or at least
a FAQ entry on the wiki?)
-- Lon
More information about the Linux-cluster
mailing list